Hi ya i am experiencing the same thing I am 7+6 and the pain is really bad i have just called the doctor and he told me too take some paracetamol and rest he is going to call me back in an hour.It has got so bad that i cant stand up, hopefully it is just my sciatica and i have also been told it can be just another side affect to the baby growing.This is my 4th pregnancy so i should be used to ths but im not.Hope you feel better soon but if you dont just give your doctor a ring.